Pteridium aquilinum f. aquilinum Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Tracheophyta class Polypodiopsida order Polypodiales family Dennstaedtiaceae genus Pteridium species Pteridium aquilinum Name Homonyms Pteridium aquilinum subsp. aquilinum Pteridium aquilinum var. aquilinum